<template>
    <div :style="!$route.meta.hiddenHeaderContent ? 'margin: -24px -24px 0px;' : null">
        <!-- pageHeader , route meta :true on hide -->
        <page-header v-if="!$route.meta.hiddenHeaderContent" :title="pageTitle" :logo="logo" :avatar="avatar">
            <slot slot="action" name="action"></slot>
            <slot slot="content" name="headerContent"></slot>
            <div slot="content" v-if="!this.$slots.headerContent && description">
                <p style="font-size: 14px;color: rgba(0,0,0,.65)">{{ description }}</p>
                <div class="link">
                    <template v-for="(link, index) in linkList">
                        <a :key="index" :href="link.href">
                            <a-icon :type="link.icon"/>
                            <span>{{ link.title }}</span>
                        </a>
                    </template>
                </div>
            </div>
            <slot slot="extra" name="extra">
                <div class="extra-img">
                    <img v-if="typeof extraImage !== 'undefined'" :src="extraImage"/>
                </div>
            </slot>
            <div slot="pageMenu">
                <div class="page-menu-search" v-if="search">
                    <a-input-search
                        style="width: 80%; max-width: 522px;"
                        placeholder="请输入..."
                        size="large"
                        enterButton="搜索"
                    />
                </div>
                <div class="page-menu-tabs" v-if="tabs && tabs.items">
                    <!-- @change="callback" :activeKey="activeKey" -->
                    <a-tabs :tabBarStyle="{margin: 0}" :activeKey="tabs.active()" @change="tabs.callback">
                        <a-tab-pane v-for="item in tabs.items" :tab="item.title" :key="item.key"></a-tab-pane>
                    </a-tabs>
                </div>
            </div>
        </page-header>
        <div class="content">
            <div class="page-header-index-wide">
                <slot>
                    <!-- keep-alive  -->
                    <keep-alive v-if="multiTab">
                        <router-view ref="content"/>
                    </keep-alive>
                    <router-view v-else ref="content"/>
                </slot>
            </div>
        </div>
    </div>
</template>

<script>
    import { mapState } from 'vuex'
    import PageHeader from '@/components/PageHeader'

    export default {
        name: 'PageView',
        components: {
            PageHeader
        },
        props: {
            avatar: {
                type: String,
                default: null
            },
            title: {
                type: [String, Boolean],
                default: true
            },
            logo: {
                type: String,
                default: null
            }
        },
        data () {
            return {
                pageTitle: null,
                description: null,
                linkList: [],
                extraImage: '',
                search: false,
                tabs: {}
            }
        },
        computed: {
            ...mapState({
                multiTab: state => state.app.multiTab
            })
        },
        mounted () {
            this.getPageMeta()
        },
        updated () {
            this.getPageMeta()
        },
        methods: {
            getPageMeta () {
                // eslint-disable-next-line
                this.pageTitle = (typeof (this.title) === 'string' || !this.title) ? this.title : this.$route.meta.title

                const content = this.$refs.content
                if (content) {
                    if (content.pageMeta) {
                        Object.assign(this, content.pageMeta)
                    } else {
                        this.description = content.description
                        this.linkList = content.linkList
                        this.extraImage = content.extraImage
                        this.search = content.search === true
                        this.tabs = content.tabs
                    }
                }
            }
        }
    }
</script>

<style lang="less" scoped>
    .content {
        margin: 24px 24px 0;

        .link {
            margin-top: 16px;

            &:not(:empty) {
                margin-bottom: 16px;
            }

            a {
                margin-right: 32px;
                height: 24px;
                line-height: 24px;
                display: inline-block;

                i {
                    font-size: 24px;
                    margin-right: 8px;
                    vertical-align: middle;
                }

                span {
                    height: 24px;
                    line-height: 24px;
                    display: inline-block;
                    vertical-align: middle;
                }
            }
        }
    }

    .page-menu-search {
        text-align: center;
        margin-bottom: 16px;
    }

    .page-menu-tabs {
        margin-top: 48px;
    }

    .extra-img {
        margin-top: -60px;
        text-align: center;
        width: 195px;

        img {
            width: 100%;
        }
    }

    .mobile {
        .extra-img {
            margin-top: 0;
            text-align: center;
            width: 96px;

            img {
                width: 100%;
            }
        }
    }
</style>
